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// Copyright 2025 Richard Gibson. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-intl.locale
description: >
Checks error cases for the options argument to the Locale
constructor.
info: |
Intl.Locale( tag [, options] )
12. Set _tag_ to ? UpdateLanguageId(_tag_, _options_).
UpdateLanguageId ( tag, options )
8. Let _variants_ be ? GetOption(_options_, *"variants"*, ~string~, ~empty~, GetLocaleVariants(_baseName_)).
9. If _variants_ is not *undefined*, then
a. If _variants_ cannot be matched by the <code>unicode_variant_subtag</code> Unicode locale nonterminal, throw a *RangeError* exception.
features: [Intl.Locale]
---*/
/*
unicode_variant_subtag = (alphanum{5,8} | digit alphanum{3})
*/
const invalidVariantsOptions = [
"",
"a",
"1",
"ab",
"2x",
"abc",
"3xy",
"abcd",
"abcdefghi",
// Value contains more than just the 'variants' production.
"GB-scouse",
// Value contains duplicates.
"fonipa-fonipa",
"fonipa-valencia-Fonipa",
// Value contains out-of-place dashes.
"-",
"-spanglis",
"spanglis-",
"-spanglis-oxendict",
"spanglis-oxendict-",
"spanglis--oxendict",
];
for (const variants of invalidVariantsOptions) {
assert.throws(RangeError, function() {
new Intl.Locale("en", {variants});
}, `new Intl.Locale("en", {variants: "${variants}"}) throws RangeError`);
}
reportCompare(0, 0);